waste rock characteristics

STANDARD GUIDANCE (COP 37) Tailings and Waste Rock

2013-07-04  STANDARD GUIDANCE (COP 37) Tailings and Waste Rock A. Definitions and applicability Mining wastes are those wastes generated during the extraction, beneficiation, and processing of ore. Waste rock and overburden are the materials that are removed to access the ore.

Tyre derived aggregates and waste rock blends: Resilient

This waste crushed rock (CR), is a viable by-product to replace natural quarry aggregates in pavement base/subbase construction. Replacing conventional aggregates in pavement construction with waste aggregates that otherwise is directed to landfills is a sustainable solution to waste management and carbon emission.

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Study on Creep Characteristics of Cemented Waste Rock Backfills

2016-11-22  Study on Creep Characteristics of Cemented Waste Rock Backfills The Open Civil Engineering Journal, 2015, Volume 9 959 The PFC program is to set mesomechanics parameters for the mechanical properties of simulation materials. Litera-

Characteristics of Crushed Waste Rock Used

2018-11-28  The compaction characteristics of waste rocks for backfilling are mainly affected by four factors: lithology, particle size distribution, lateral stress, and number of lateral loading cycles. This test focused on the influence of lateral stress on compaction characteristics of waste rock

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Modeling and calculating for the compaction

It is necessary to apply artificial boundary conditions in compaction characteristic laboratory tests of WRM, as the results are influenced greatly by boundary conditions, and existing numerical simulation methods cannot accurately describe the characteristics of waste rock and its compaction characteristics.

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Experimental Research on Deformation Characteristics of

Waste-rock material used in underground backfill mining has a granular texture and acquires non-linear deformation characteristics when compressed. The deformation modulus of waste-rock measured by a laboratory compression test is significantly different from the true deformation modulus in the field, due to the complete confining ...

Author: Pengfei Zhang, Yubao Zhang, Tongbin Zhao, Yunliang Tan, Fenghai Yu

(PDF) Geotechnical characteristics of crushed waste

PDF This paper presents the findings of an extensive laboratory investigation on the geotechnical properties of waste excavation rock in pavement sub-bases. The waste excavation rock used in this study originated from ―basalt floaters‖ or surface excavation basalt rock

The Diavik Waste Rock Project: Particle size distribution

The Diavik Waste Rock Project: Particle size distribution and sulfur characteristics of low-sulfide waste rock Author links open overlay panel Lianna J.D Smith a b David W. Blowes a John L. Jambor c 1 Leslie Smith d David C. Sego e Matthew Neuner d

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Modeling and calculating for the compaction characteristics of

describe the characteristics of waste rock and its compaction characteristics. For these reasons, a new method for com-puting the compaction characteristics of WRM is proposed in this study. 2 MODELING The mind map of calculating the compaction characteristics of WRM is shown in Figure 1. Modeling, property assign-

Cited by: 2

Assessment of waste rock weathering characteristics at the

The waste rock is currently classified into three classes based on metal (zinc, arsenic) and sulfide contents: reactive (A), slightly reactive (B), and non-reactive (C). This thesis presents the analysis only of Class B marble and hornfels material.

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Assessment of waste rock weathering characteristics at

The waste rock is currently classified into three classes based on metal (zinc, arsenic) and sulfide contents: reactive (A), slightly reactive (B), and non-reactive (C). This thesis presents the analysis only of Class B marble and hornfels material.

Physical Aspects of Waste Storage From a Hypothetical Open Pit Porphyry Copper

2003-05-16  major categories—leach rock, mill tailings, and waste rock. This report describes the physical attributes that compose the “footprint” (the space occupied) generated by a model open pit copper porphyry mining and milling operation. This model represents only one possible scenario for accommodating waste from an open pit copper mine.

EUROPEAN WASTE CATALOGUE AND HAZARDOUS WASTE LIST

2012-01-27  European Waste Catalogue and Hazardous Waste List - Valid from 1 January 2002 2 PREFACE In 1994, the first European Waste Catalogue1 and hazardous waste list2 were published as two separate documents. The lists were used by the Environmental Protection Agency for the compilation of waste

Geotechnical and rheological characteristics of waste

In this study, the geotechnical and rheological characteristics of mine deposits were examined to delimit the hazardous areas near abandoned mines. Waste rock materials were collected from a pyrophyllite mine deposit in the mountainous region of Korea, and a sieve analysis was performed to determine the grain size distribution.

Waste Incineration - Europa

2019-07-12  that the characteristics of the waste differ from mixed waste. Specifically prepared refuse derived fuel incinerators fall in this sub-sector iii. Hazardous waste incineration - this includes incineration on industrial sites and incineration at merchant plants (that usually receive a very wide variety of wastes) iv.

Design and Operation of Waste Rock Piles at Noncoal

This document provides summary information on the design and operation of waste rock piles.--The intent of this and similar reports is to provide state and federal regulators with information on the newest technical designs and innovations used in the environment.aJ management of mine waste.

Management of Tailings and Waste-Rock in Mining Activities

2019-07-12  Executive summary iv Management of tailings and waste-rock in mining Emissions: Effluents and dust emitted from tailings and waste-rock management facilities, controlled or uncontrolled, may be toxic in varying degrees to humans, animals and plants.

Tailingsfo What are tailings? - Their nature and production

2017-04-11  The addition of reagents used in mineral processing may also change the chemical characteristics of the processed minerals and therefore the properties of the tailings and waste rock (EC 2004). The processing of hard rock

Overburden - Wikipedia

2019-11-09  In mining, overburden (also called waste or spoil) is the material that lies above an area that lends itself to economical exploitation, such as the rock, soil, and ecosystem that lies above a coal seam or ore body. Overburden is distinct from tailings, the material that remains after economically valuable components have been ...

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Geochemical characteristics of a sulphidic waste rock and

2015-12-27  202 The European Journal of Mineral Processing and Environmental Protection Vol.5, No.2, 1303-0868, 2005, pp. 202-213 Geochemical characteristics of a sulphidic waste rock and implications for environmental rehabilitation E. Mylona 1,*, A. Xenidis1, G. Gaidajis2, K. Adam3

An investigation of the erosion characteristics of

Abstract. Fluvial erosion, erosion by water, is a complex hydrologic process involving the interaction of a soil surface with the surrounding environment. A research program was undertaken at the Molycorp Inc. molybdenum mine in Questa, New Mexico to study the erosion characteristics of uncovered waste rock.

Characteristics and the environmental acceptability of

EC (2009) Reference document on best available techniques for management of tailings and waste-rock in mining activities. January 2009. European Commission, Directorate-General, JRC Joint Research Centre, Institute for prospective technological studies, sustainability in industry, energy and transport. European IPPC bureau. 563 p.

Study on b-Value Characteristics of Acoustic Emission of Cemented Waste Rock

2015-11-05  Study on b-Value Characteristics of Acoustic Emission of Cemented Waste Rock Backfills during Short-Term Creep Process Li Changhong1,2, Ma Qiantian1,2, Mao Tianwei3 1 Key Laboratory of the Ministry of Education of China for High-efficient Mining and Safety

Experimental Study and Application of the Different Waste

Stress-strain relationship of waste body under different side pressures, water contents and particle fractions are investigated in this paper. The bearing features of waste filled body of entry retaining besides gob-side entry retaining are: (1) filling waste gob-side entry retaining requires adequate horizontal restraint; (2) gangue ...

Evaluation of Gas Migration and Rock Damage

2018-03-30  In the deep geological repository of nuclear waste, the corrosion of waste generates gas, which increases the storage pressure, changes the properties of the rock strata, and affects the stability of nuclear waste repository. Therefore, it is of great importance to understand the gas migration in the engineering barrier and the ...

CiteSeerX — Waste rock characteristics at tropical coal

Abstract. Geochemical characteristics and the increase of total reactive surface area of the sulphide-bearing waste rock due to weathering processes at dumping area are expected to enhance the oxidation of sulphide minerals, commonly present as pyrite (FeS2), leading to

ANNEXE S2QC-36 Mémo EcoMetrix - Metal Leaching Characteristics of Waste Rock

2016-01-11  16 December 2015 Sandra Pouliot Page 2 of 10 Reference: Metal Leaching Characteristics of Waste Rock and Tailings from Mine Canadian Malartic on 7 samples consisting of 2 ores, 2 waste rock and 3 tailings samples. All of these data were reviewed and considered for estimation of drainage water quality from waste rock

ONKALO - Posiva

ONKALO . One element of the site investigations conducted at Olkiluoto is the excavation of the underground rock characterisation facility (ONKALO) that extends approximately to the depth of 450 meters. ONKALO has aided in

Mend Uncategorized

Wet barriers on pyrite uranium tailings – Part I and II: Laboratory lysimeter studies of oxidation, leaching and limestone neutralization characteristics of uranium tailings and waste rock Executive Summary